244645145651 has 2 divisors, whose sum is σ = 244645145652. Its totient is φ = 244645145650.

The previous prime is 244645145617. The next prime is 244645145711. The reversal of 244645145651 is 156541546442.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244645145651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 244645145596 and 244645145605.

It is not a weakly prime, because it can be changed into another prime (244645945651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122322572825 + 122322572826.

It is an arithmetic number, because the mean of its divisors is an integer number (122322572826).

Almost surely, 2^244645145651 is an apocalyptic number.

244645145651 is a deficient number, since it is larger than the sum of its proper divisors (1).

244645145651 is an equidigital number, since it uses as much as digits as its factorization.

244645145651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304000, while the sum is 47.

The spelling of 244645145651 in words is "two hundred forty-four billion, six hundred forty-five million, one hundred forty-five thousand, six hundred fifty-one".